Get started free

B20

Billable

Human immunodeficiency virus [HIV] disease

B20 is the ICD-10-CM code for Human immunodeficiency virus [HIV] disease. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
A00-B99
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

What this means — in plain language

MedlinePlus · NIH

What is HIV? HIV stands for human immunodeficiency virus. HIV harms your immune system by destroying a type of white blood cell that helps your body fight infection. This puts you at risk for other infections and diseases. What is AIDS? AIDS stands for acquired immunodeficiency syndrome. It is the final stage of infection with HIV. It happens when the body's immune system is badly damaged because of the virus. Not…

Read more about HIV at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • •acquired immune deficiency syndrome [AIDS]
  • •AIDS-related complex [ARC]
  • •HIV infection, symptomatic

Excludes1 — not coded here

  • •asymptomatic human immunodeficiency virus [HIV] infection status (Z21)
  • •exposure to HIV virus (Z20.6)
  • •inconclusive serologic evidence of HIV (R75)

Code first

  • •Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium, if applicable (O98.7-)

Use additional code

  • •code(s) to identify all manifestations of HIV infection

Frequently asked questions

What is ICD-10 code B20?
B20 is the ICD-10-CM code for "Human immunodeficiency virus [HIV] disease". It falls under A00-B99 Certain infectious and parasitic diseases.
Is B20 a billable code?
Yes — B20 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from B20?
Excludes1 (not coded here): asymptomatic human immunodeficiency virus [HIV] infection status (Z21); exposure to HIV virus (Z20.6); inconclusive serologic evidence of HIV (R75).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.

Get started freeSee how Eleplan works →